import logging
from redis import StrictRedis


class Config(object):
    """项目的配置"""
    SECRET_KEY = 'qWzZVG45n51mHUIevF+d4yC74POstj32YPVjbbQBaXgyqEih5fLr+G/CCAxoZcKR'
    # 为MySQL添加配置
    SQLALCHEMY_DATABASE_URI = "mysql://root:mysql@localhost:3306/information"
    # 抑制开销,是必须配置项目
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    # 请求结束时，会自动执行Session.commit()
    SQLALCHEMY_COMMIT_ON_TEARDOWN = True
    # Redis的配置
    REDIS_HOST = '127.0.0.1'
    REDIS_PORT = '6379'
    # Session保存配置
    SESSION_TYPE = "redis"
    # 开启session签名
    SESSION_USE_SIGNER = True
    # 指定Session保存的redis
    SESSION_REDIS = StrictRedis(host=REDIS_HOST, port=REDIS_PORT)
    # 设置需要过期
    SESSION_PERMANENT = False
    # 设置过期时间
    PERMANENT_SESSION_LIFETIME = 86400 * 2
    # 设置日志等级
    LOG_LEVEL = logging.DEBUG


class DevelopmentConfig(Config):
    """开发环境下的配置"""
    DEBUG = True


class ProductionConfig(Config):
    """生产环境下的配置"""
    DEBUG = False
    LOG_LEVEL = logging.WARNING


class TestingConfig(Config):
    """单元测试环境下的配置"""
    DEBUG = True
    TESTING = True


config = {
    "development": DevelopmentConfig,
    "production": ProductionConfig,
    "testing": TestingConfig
}
